Heuchera plant named ‘Happy Flames’

ABSTRACT

A new cultivar of  Heuchera  named ‘Happy Flames’ that is characterized by its leaves that are green-yellow in color with red veins with the red veins more prominent in spring, its high sun tolerance, its vigorous growth habit, its dense plant habit and its flowers that are white in color.

Botanical classification: Heuchera hybrid.

Cultivar designation: ‘Happy Flames’.

CROSS REFERENCE TO A RELATED APPLICATIONS

This application is related to a European plant breeders' rightsapplication filed on Dec. 19, 2017, application No. 2017/3334. Therehave been no offers for sale anywhere in the world prior to theeffective filing date of this Application and no accessibility to one ofordinary skill in the art could have been derived from the printed plantbreeder's rights documents. This application is co-pending with a U.S.Plant Patent Application filed for a plant derived from the samebreeding program that is entitled Heuchera Plant Named ‘Happy Moon’(U.S. Plant Patent pending)*.

*(Applicant gives the examiner the authority to replace the U.S. PlantPatent pending with an Application No. or Patent No. if applicable anddelete this statement.)

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Heucheraof hybrid origin, botanically known as Heuchera ‘Happy Flames’ and ishereinafter referred to by its cultivar name ‘Happy Flames’.

The new cultivar was discovered as a chance seedling in a container bythe Inventor in Réty, France in July of 2015. The source of the seedlingwas from seed collected in 2009 from open pollinated plants in a trialfield that contained numerous proprietary Heuchera seedlings from theInventor's breeding program and other cultivars. The parentage of ‘HappyFlames’ is therefore unknown.

Asexual propagation of the new cultivar was first accomplished under thedirection of the Inventor by tissue culture initiated from meristemtissue in March of 2018 in Beervelde, Belgium. Asexual propagation ofthe new cultivar by tissue culture has determined that thecharacteristics of the new cultivar are stable and are reproduced trueto type in successive generations.

SUMMARY OF THE INVENTION

The following traits have been repeatedly observed and represent thecharacteristics of the new cultivar. These attributes in combinationdistinguish ‘Happy Flames’ as a new and unique cultivar of Heuchera.

-   -   1. ‘Happy Flames’ exhibits leaves that are green-yellow in color        with red veins with the red veins more prominent in spring.    -   2. ‘Happy Flames’ exhibits a high sun tolerance.    -   3. ‘Happy Flames’ exhibits a vigorous growth habit.    -   4. ‘Happy Flames’ exhibits a dense plant habit.    -   5. ‘Happy Flames’ exhibits flowers that are white in color.

‘Happy Flames’ can be most closely compared to the Heuchera cultivars‘Delta Dawn’ (U.S. Plant Pat. No. 23,545), ‘Red Lightning’ (U.S. PlantPat. No. 27,767) and ‘Happy Moon’. All three are similar to ‘HappyFlames’ in foliage coloration. ‘Delta Dawn’ differs from ‘Happy Flames’in having a less dense plant habit, leaves that are less sun resistant,shorter flower stem's and leaves that are less glossy. ‘Red Lightning’differs from ‘Happy Flames’ in having a less dense plant habit, andleaves that are less sun resistant, smaller in size and less glossy.‘Happy Moon’ differs from ‘Happy Flames’ in having a foliage that islighter green and more yellow in color.

STATEMENT REGARDING PRIOR DISCLOSURES BY THE INVENTOR

The Applicant asserts that no publications or advertisements relating tosales, offers for sale, or public distribution occurred more than oneyear prior to the effective filing date of this application. Anyinformation about the claimed plant would have been obtained from adirect or indirect disclosure from the Inventor. The Applicant claims aprior art exemption under 35 U.S.C. 102(b)(1) for disclosure and/orsales prior to the filing date but less than one year prior to theeffective filing date. Disclosures include but are not limited towebsite disclosures by Pioneer Seeds, RHS Gardening, Denis plants, andPépinére des DEUX CAPS.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying colored photograph illustrates the overall appearanceand distinct characteristics of the new Heuchera. The photograph wastaken of a plant 18 months in age as grown outdoors in a 15-cm containerin Attenhove, Belgium.

The photograph in FIG. 1 provides a side view of the plant of ‘HappyFlames’ in bloom.

The photograph in FIG. 2 provides a close up of the inflorescence of‘Happy Flames’.

The photograph in FIG. 3 and FIG. 4 provide close up view of the foliageof ‘Happy Flames’ with FIG. 3 taken of a young leave and FIG. 4 taken ofa mature leaf.

The colors in the photograph are as close as possible with the digitalphotography techniques available, the color values cited in the detailedbotanical description accurately describe the colors of the newHeuchera.

DETAILED BOTANICAL DESCRIPTION OF THE PLANT

The following is a detailed description of 18 month-old plants of thenew cultivar as grown outdoors in 15-cm containers Attenhove, Belgium.The phenotype of the new cultivar may vary with variations inenvironmental, climatic, and cultural conditions, as it has not beentested under all possible environmental conditions. The colordetermination is in accordance with The 2015 Colour Chart of The RoyalHorticultural Society, London, England, except where general color termsof ordinary dictionary significance are used.

-   General description:    -   -   Blooming period.—Late spring into summer in Belgium.        -   Plant type.—Herbaceous perennial.        -   Plant habit.—Flattened globular with inflorescences held            above the foliage.        -   Height and spread.—An average of 26.5 cm in height (soil            level to top of foliar plane), average of 53.9 cm in height            (soil level to top of floral plane) and 47.8 cm in spread.        -   Hardiness.—At least in U.S.D.A. Zones 3 to 9.        -   Environmental stress.—Tolerant to high sun exposure.        -   Diseases and pests.—No susceptibility or resistance to pests            or diseases has been observed.        -   Root description.—Fibrous roots on woody rootstalks, 158D in            color.        -   Propagation.—Tissue culture.        -   Root development.—An average of 8 weeks to fully develop            from a tissue culture plug in a 7-cm when planted April            through August in Belgium.        -   Growth rate.—Vigorous.-   Stem description (base of leaves):    -   -   Shape.—Round.        -   Stem color.—Young; 187B to 187C, mature; N200A.        -   Stem size.—An average of 0.9 mm in diameter and 4.5 cm in            length.        -   Stem strength.—Strong.        -   Stem aspect.—Upright.        -   Stem surface.—Glabrous, consisting of old leaf-bases.        -   Stem number.—Average of 5.        -   Branching habit.—Stems emerge from basal rosette, no lateral            branches.-   Foliage description:    -   -   Leaf shape.—Broad ovate to near orbicular.        -   Leaf division.—Simple.        -   Leaf base.—Hastate, lobes touching to slightly overlapping.        -   Leaf apex.—Short and abruptly acute.        -   Leaf venation.—Laciniate, upper surface 151B, lower surface            150C.        -   Leaf margins.—Crenate with abruptly acute tips on each            tooth.        -   Leaf attachment.—Petiolate.        -   Leaf arrangement.—Alternate in basal rosettes.        -   Leaf lobes.—Lobed, an average of 7 lobes, occasionally 9,            shallow in depth, divergent.        -   Leaf surface.—Both surfaces non-rugose, smooth and            pubescent, moderately to densely covered with very short            strigose hairs an average of 0.5 mm in length and too small            to measure color, upper surface very slightly glossy, lower            surface matte.        -   Leaf color.—Young upper surface; N34A and 179A, margins            149A, young lower surface; 181A to 181B, margins 145B and            149B, mature upper surface; N199C to N199D, margins 151B to            151C, mature lower surface; 177D, margins 150B and 151D,            fall and winter color similar to mature foliage until            browning.        -   Leaf size.—An average of 11.3 cm in length and 10.1 cm in            width.        -   Leaf quantity.—An average of 8 per basal rosette.        -   Petioles.—An average of 16.1 cm in length and 3 mm in            diameter, moderate strength, both surfaces glossy, upper            surface color N144A, changing to 176A at the tip, lower            surface color N144A to N144B, changing to 176C to 176D at            the tip.        -   Stipules.—Leafy stipule at the base of each leaf, average            length 1.5 cm, average width 4 mm, acute tip, 187D in color.        -   Internode length.—Average of 2 mm.-   Flower description:    -   -   Inflorescence type.—Numerous small bell-shaped flowers            arranged on panicles on peduncles emerging from a basal            rosette.        -   Inflorescence size.—An average of 37.1 cm in height and 7.1            cm in diameter.        -   Inflorescence number.—An average of 3.        -   Flower fragrance.—None.        -   Flower quantity.—Average of 120 flowers per flowering stem.        -   Flower lastingness.—Average of one week.        -   Flower buds.—Obovate in shape, an average of 3 mm in length            and 2 mm in diameter, color; 151C and tinged 179A at the            top, surface is matte and densely covered with very short            glandular hairs; an average of 0.2 mm in length and too            small to measure color.        -   Flower aspect.—Outward and nodding.        -   Flower type.—Single, campanulate.        -   Flower size.—Average of 6 mm in height and diameter, 7 mm in            length.        -   Petals.—Average of 5, rotate arrangement and implanted in            the hypanthium at base, oblanceolate in shape, margin is            entire, apex is acute, base is narrow attenuate, upper and            lower surface is glabrous, smooth and matte, an average of 4            cm in length and 1 mm in width, color when opening upper and            lower surface; a color between 69D and N155B, color when            fully open upper and lower surface; a color between N155B            and NN155D.        -   Calyx.—Campanulate, sepals fused to hypanthium, 5 mm in            length and diameter.        -   Sepals.—An average of 5, lower 50% fused into campanulate            hypanthium, short oblong in shape, an average of 4 mm in            length and 1.25 mm in width, margin is entire and fused into            hypanthium, apex is bluntly acute to obtuse, color; when            opening and fully open upper surface 150D top 179B, when            opening and fully open lower surface 151C, top 179A both            surfaces are matte and densely covered with very short            glandular hairs an average of 0.2 mm in length and to small            to measure color.        -   Peduncle.—An average of 49.9 cm in length and 2 mm in            diameter, 151B to 151C in color, primary flower aspect 40°,            secondary peduncle aspect to main peduncle 60°, moderate in            strength, surface moderately glossy and densely covered with            very short soft glandular hairs; average of 0.2 mm in length            and too small to measure color.        -   Pedicels.—An average of 2 mm in length and 0.5 mm in            diameter, 153B in color, primary flower aspect straight on            top of secondary pedicel, secondary and tertiary flower            aspect is 45°, moderate in strength, surface matte and            densely covered with very short soft glandular hairs;            average of 0.2 mm in length and to small too measure color.-   Reproductive organs:    -   -   Gynoecium.—Pistils; 2, 3.5 mm in length, stigma;            club-shaped, 157D in color, 0.2 mm in diameter, style; an            average of 3.8 mm in length and 157D in color, ovary; 150D            in color.        -   Androecium.—Stamens; 5, anthers; triangular in shape,            average of 0.5 mm in length and width, 199C in color,            filament; 2 mm in length and NN155D in color, pollen; low in            quantity and 156B in color.        -   Seed/fruit.—No fruit or seeds were observed to date.

It is claimed:
 1. A new and distinct cultivar of Heuchera plant named‘Happy Flames’ as herein illustrated and described.